GSM; Iridium; Globalstar; Thuraya} and/or high-capacity satellite systems- for convenience of use for day-to-day home/office communications.
Notes
1 Marine VHF radio must be capable of operating on Ch70, Ch16,
Ch6 and ChI3 and must be able to transmit and receive 'general
voice communications' - which means that it must be able to operate
on the working channels used by pilots, ports, Coast Radio Stations
and other vessels for 'intership' communications. The Ch70 Watch
Receiver must maintain a continuous watch regardless of channel
being used by the radio transceiver. The equipment must allow a
Distress Alert to be sent 'from the position where the ship is normally
navigated' (bridge/wheelhouse). In practical terms, it is advisable to
have an additional VHF radio that is not fitted with DSC, or where
the DSC unit can be switched-off when the VHF radio is being used
for harbour operations/manoeuvres (otherwise - the DSC Controller
may suddenly change your transceiver to a different channel to that
you are using if a Distress, Urgency or Safety alert is received).
2 A NA VTEX receiver is required if your vessel is operating in an area
where NAVTEX coverage is available.
3 A MF /HF MSI receiver may be fitted (pOSSibly connected to the
NAVTEX receiver) to receive MSI (including NAVTEX) on
frequencies not covered by your NAVTEX receiver.
4 Vessels operating outside of NA VTEX coverage, but within Inmarsat
coverage (700N to 700 S) should have an EGC receiver fitted. In
practice, this will most likely be included with your Inmarsat-C
transceiver - see Note 10 below.5 All vessels must carry an Emergency Position Indicating Radio
Beacon (EPIRB). For Sea Area Al only, you are allowed to fit a
'VHF Ch70 DSC EPIRB - combined with a SART' (although, at
the time of writing, no manufacturer is marketing such a device). For
Sea Area A 11 A2/ A3 you can choose between the Inmarsat-E
(I.6GHz/L-Band) EPIRB, or the 406MHz Cospas-Sarsat EPIRB.
Vessels operating in Sea Area A4 must carry a Cospas-Sarsat 406MHz
EPIRB.
6 Search And Rescue (radar) Transponder (SART). Two are normally
carried and fitted one at each side of the bridge/wheelhouse. Others
may be carried in a 'grab bag' or stowed in a liferaft (provided that
they can be removed for periodic testing).226 THE NAUTICAL INSTITUTE